<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <form action="/update" method="post">
        修改的用户名: <input type="text" name="username" id=""><br>
        修改的密码:  <input type="password" name="password" id=""><br>
        修改的序号: <input type="text" name="id" readonly value="<%= list[0] %>" style="display:none">
        <input type="reset" value="重置"><br>
        <input type="submit" value="添加">
    </form>
</body>
</html>